Vacuum pressure impregnation method and device

Abstract

The invention relates to the technical field of impregnation equipment, in particular to a vacuum pressure impregnation method and device.The vacuum pressure impregnation method comprises the steps that monitoring equipment is installed at an observation opening of a paint impregnation tank; a workpiece is put into a paint dipping tank; a workpiece is subjected to paint dipping operation; and the workpiece subjected to paint dipping is taken out. According to the vacuum pressure impregnation device, the working state can be mastered in real time by remotely monitoring the state of the workpiece in the impregnation tank, the impregnation operation can be conveniently intervened in time, and the working efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of impregnation equipment, and in particular to a vacuum pressure impregnation method and device. Background Art

[0002] Vacuum pressure impregnation equipment is an indispensable and important equipment in the field of motor and transformer maintenance. Most of the "vacuum dipping machines" are installed in foundation pits about 2.5 meters deep. The vacuum dipping operation requires manual opening and closing of the gate valve installed on the pipeline. During operation, personnel are required to go up and down the foundation pit and operate in the foundation pit, which poses a safety risk. To observe the paint surface in the dipping tank, the eyes need to be close to the observation window, the observation accuracy is insufficient, the operation is inconvenient, the dipping operation requires multiple people to perform, and the work efficiency is low. Summary of the invention

[0003] In view of the above problems existing in the existing vacuum pressure impregnation method, the present invention is proposed.

[0004] Therefore, one of the objects of the present invention is to provide a vacuum pressure impregnation method, which aims to provide a method for remotely viewing the paint immersion of a workpiece to improve work efficiency.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a vacuum pressure impregnation method, comprising: installing a monitoring device at the observation port of the paint dipping tank;

[0006] By placing the workpiece in a paint dipping tank;

[0007] By applying a coating to the workpiece; and,

[0008] By removing the workpiece after the dip coating is completed.

[0009] As a preferred solution of the vacuum pressure impregnation method of the present invention, the monitoring device includes a camera and a display screen of a remote viewing device, and the interior of the paint dipping tank can be remotely observed through the camera and the display screen.

[0010] As a preferred embodiment of the vacuum pressure impregnation method of the present invention, the varnishing operation includes evacuating the varnishing tank, varnishing the workpiece, and a varnishing back process.

[0011] As a preferred embodiment of the vacuum pressure impregnation method of the present invention, the workpiece is dipped in paint, which includes vacuum dipping and normal pressure dipping. The workpiece is first dipped in paint, and then dipped in paint at normal pressure.

[0012] As a preferred embodiment of the vacuum pressure impregnation method of the present invention, after the workpiece is dipped in paint, the paint is returned, the workpiece is drained, and the fallen paint is returned again.

[0013] The beneficial effects of this method are as follows: by remotely monitoring the status of the workpiece in the varnish dipping tank, the working status can be grasped in real time, which facilitates timely intervention in the varnish dipping operation and improves work efficiency.

[0014] Another object of the present invention is to provide a vacuum pressure impregnation device, which aims to provide a device for remotely viewing the paint impregnation of a workpiece and remotely performing the paint impregnation operation, thereby improving work efficiency.

[0015] In order to solve the above technical problems, the present invention provides the following technical solutions: a vacuum pressure impregnation device, comprising: an impregnation assembly; a paint impregnation tank and a paint storage tank, and a connecting pipe connected to the paint impregnation tank and the paint storage tank,

[0016] A monitoring component, comprising a camera disposed outside the paint storage tank, and a display screen electrically connected to the camera; and,

[0017] A control assembly comprises a valve group installed in the connecting pipeline.

[0018] As a preferred solution of the vacuum pressure impregnation device described in the present invention, the connecting pipeline includes an air inlet pipe and an air outlet pipe 1 arranged on the paint dipping tank, an air outlet pipe 2 arranged on the paint storage tank, a paint outlet pipe and a paint return pipe arranged between the paint storage tank and the paint dipping tank, and a main air pipe connected to the air outlet pipe 1 and the air outlet pipe 2.

[0019] As a preferred solution of the vacuum pressure impregnation device of the present invention, wherein: the end of the main air pipe is connected to a vacuum pump, and a pressure gauge is arranged on the main air pipe;

[0020] The paint return pipe and one end of the paint outlet pipe are merged and connected to the bottom of the paint dipping tank, the other end of the paint return pipe is located at the top of the paint storage tank, and the other end of the paint outlet pipe is located at the bottom of the paint storage tank.

[0021] As a preferred solution of the vacuum pressure impregnation device described in the present invention, the valve group includes a main air valve arranged on the main air pipe, an air outlet valve 1 arranged on the air outlet pipe 1, an air outlet valve 2 arranged on the air outlet pipe 2, an air inlet valve arranged on the air inlet pipe, a paint outlet valve arranged on the paint outlet pipe, and a paint return valve arranged on the paint return pipe.

[0022] As a preferred solution of the vacuum pressure impregnation device of the present invention, wherein: a filter tank is provided on the paint outlet pipe, and the paint outlet valve includes a valve 1 arranged between the filter tank and the paint storage tank, and a valve 2 arranged between the filter tank and the paint impregnation tank;

[0023] The control component also includes a PLC controller, and the valve group is connected to the PLC controller.

[0024] The beneficial effects of the present invention are as follows: by remotely monitoring the status of the workpiece in the paint dipping tank, the working status can be grasped in real time, which is convenient for timely intervention in the paint dipping operation. At the same time, the control component can be remotely controlled, further improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the vacuum pressure impregnation device of the present invention.

[0027] Figure 2 It is a schematic diagram of the display screen interface structure of the vacuum pressure impregnation device of the present invention.

[0028] Figure 3 It is a schematic diagram of the structure of the PLC control system of the vacuum pressure impregnation device of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1, reference Figure 1, as a first embodiment of the present invention, provides a vacuum pressure impregnation method, the method comprising:

[0034] S1. By installing a monitoring device at the observation port of the paint tank 101;

[0035] The monitoring device includes a camera 201 and a display screen 202 of a remote viewing device, and the interior of the paint dipping tank 101 can be remotely observed through the camera 201 and the display screen 202;

[0036] A high-definition camera 201 is installed at the observation port of the paint immersion tank 101 to ensure that the state of the paint surface in the tank can be monitored in real time. These cameras are connected to the display screen 202 of the control room via a network, and the operator can view the monitoring video on the display screen 202 in real time.

[0037] Through high-definition cameras, operators can accurately observe the height and flow status of the paint surface, reducing human errors and inconveniences in traditional observation methods.

[0038] S2. By placing the workpiece into the paint dipping tank 101;

[0039] The operator controls the start of the oil pump of the hydraulic pump station to raise the hydraulic cylinder and open the cylinder cover of the paint dipping tank 101; the workpiece to be painted is hoisted into the paint dipping tank 101 to ensure that the workpiece is placed in the correct position of the paint dipping tank 101; the hydraulic cylinder is lowered, the cylinder cover is closed, and the fixing screws are manually tightened to ensure that the cylinder cover is sealed; the workpiece position and the working status of the paint dipping tank 101 are checked in real time through the display screen 202 to ensure that the workpiece is placed correctly.

[0040] S3. By applying paint to the workpiece;

[0041] When the workpiece is placed in the paint dipping tank 101, the paint dipping operation of the entire workpiece is completed by evacuating the paint dipping tank 101, dipping the workpiece in paint, and performing a paint return process.

[0042] Among them, the workpiece is dipped in paint including vacuum dipped in paint and normal pressure dipped in paint. First, the workpiece is dipped in paint in vacuum, and then dipped in paint at normal pressure. After the workpiece is dipped in paint, the paint is returned, and then the workpiece is drained, and the fallen paint is returned again.

[0043] When evacuating the vacuum, stop evacuating the vacuum when the pressure reaches 0.08MPA, and evacuate the vacuum again when the pressure drops to 0.06MPA. This step ensures that the vacuum environment in the paint tank 101 is stable, and then the paint immersion operation is carried out to ensure that the paint surface is at least 10-20mm above the workpiece, and the vacuum pressure is maintained above 0.05MPA for 10 minutes; during this period, when the pressure drops to 0.05MPA, continue to evacuate the vacuum, and stop evacuating the vacuum when the pressure reaches 0.07MPA; then carry out normal pressure paint immersion for one hour, and finally carry out the paint return and workpiece draining operations.

[0044] S4. Remove the workpiece after the dip coating is completed;

[0045] The operator controls the start of the oil pump of the hydraulic pump station to raise the hydraulic cylinder, opens the cylinder cover of the paint dipping tank 101, and lifts the workpiece that has been painted out of the paint dipping tank 101 to ensure that the workpiece is completely dry and fully soaked in the paint liquid. The workpiece lifting process is monitored by a high-definition camera to ensure the safety and accuracy of the operation.

[0046] Example 2, reference Figure 1 and Figure 2 , which is a second embodiment of the present invention, provides a vacuum pressure impregnation device, which includes an impregnation component 100, a monitoring component 200 and a control component 300;

[0047] The dipping assembly 100 includes a paint dipping tank 101 and a paint storage tank 102, as well as a connecting pipe 103 connected to the paint dipping tank 101 and the paint storage tank 102. The paint storage tank 102 is used to provide paint for dipping the workpiece inside the paint dipping tank 101. When in use, the workpiece is placed in the paint dipping tank 101, and the pressure is controlled and the paint is mobilized through the connecting pipe 103 to perform the paint dipping operation.

[0048] The monitoring component 200 includes a camera 201 arranged on the outside of the paint storage tank 102, and a display screen 202 electrically connected to the camera 201; by installing the camera 201 on the outside of the observation window of the paint dipping tank 101, the paint dipping operation inside the paint dipping tank 101 is monitored in real time through the camera 201, and the display screen 202 can realize remote monitoring.

[0049] The control assembly 300 includes a valve group 301 installed in the connecting pipe 103. The valve group 301 controls the opening and closing of the connecting pipe 103, and further controls the progress of the varnishing operation.

[0050] Among them, the connecting pipe 103 includes an air inlet pipe 103a and an air outlet pipe 103b arranged on the paint dipping tank 101, an air outlet pipe 103c arranged on the paint storage tank 102, a paint outlet pipe 103d and a paint return pipe 103e arranged between the paint storage tank 102 and the paint dipping tank 101, and a main air pipe 103f connected to the air outlet pipe 103b and the air outlet pipe 2 103c.

[0051] Furthermore, a vacuum pump 103f-1 is connected to the end of the main air pipe 103f, and a pressure gauge 103f-2 is arranged on the main air pipe 103f;

[0052] The paint return pipe 103e and one end of the paint outlet pipe 103d are merged and connected to the bottom of the paint dipping tank 101 . The other end of the paint return pipe 103e is located at the top of the paint storage tank 102 , and the other end of the paint outlet pipe 103d is located at the bottom of the paint storage tank 102 .

[0053] Among them, the valve group 301 includes a main air valve 301a arranged on the main air pipe 103f, an air outlet valve 1 301b arranged on the air outlet pipe 1 103b, an air outlet valve 2 301c arranged on the air outlet pipe 2 103c, an air intake valve 301d arranged on the air intake pipe 103a, a paint outlet valve 301e arranged on the paint outlet pipe 103d, and a paint return valve 301f arranged on the paint return pipe 103e. A single valve of the valve group 301 controls the opening of a single pipe of the corresponding connecting pipe 103.

[0054] During the varnishing operation, the workpiece is firstly hoisted into the varnishing tank 101 and the tank cover is fixed. Then, the air outlet pipe and the main air pipe 103f-103b are opened, and the vacuum pump 103f-1 is used to perform vacuuming. When the pressure reaches 0.08MPA, the main air pipe 103f is closed to stop vacuuming. When the pressure drops to 0.06MPA, the main air pipe 103f is opened again to perform vacuuming. This step ensures that the vacuum environment in the varnishing tank 101 is stable.

[0055] Then, open the paint outlet pipe 103d, so that the paint inside the paint storage tank 102 enters the paint immersion tank 101 to immerse the workpiece, and observe the inside of the paint immersion tank 101 through the camera 201. After ensuring that the paint surface is at least 10-20mm above the workpiece, close the paint outlet valve 301e, and keep the vacuum pressure above 0.05MPA for 10 minutes; when the pressure drops to 0.05MPA during this period, continue to open the main air pipe 103f to evacuate, and when the pressure reaches 0.07MPA, stop evacuating and close the main air pipe 103f; then open the air inlet pipe 103a to immerse the paint at normal pressure for one hour;

[0056] Finally, open the main air pipe 103f and the air outlet pipe 103c, start the vacuum pump 103f-1, and stop when the pressure reaches 0.08MPA; close the main air pipe 103f, and when the pressure drops to 0.06MPA, open the main air pipe 103f and start the vacuum pump 103f-1, then open the paint return pipe 103e, wait for the paint inside the paint immersion tank 101 to return to the paint storage pipe, close the paint return pipe 103e, and finally drain the workpiece and the paint that has fallen.

[0057] Example 3, reference Figure 2 and Figure 3 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: a filter tank 103d-1 is provided on the paint outlet pipe 103d, and the paint outlet valve 301e includes a valve 1 301e-1 arranged between the filter tank 103d-1 and the paint storage tank 102, and a valve 2 301e-2 arranged between the filter tank 103d-1 and the paint dipping tank 101; wherein the paint inside the paint storage tank 102 is filtered when entering the paint dipping tank 101 to prevent impurities from entering and affecting the paint dipping effect, and at the same time, the valve 1 301e-1 and the valve 2 301e-2 are opened or closed at the same time to open or close the paint outlet pipe 103d.

[0058] The control component 300 also includes a PLC controller 302, and the valve group 301 is connected to the PLC controller 302, wherein the PLC controller 302 can remotely control the opening and closing of the valve group 301, and can also control the cylinder and vacuum pump 103f-1 of the paint immersion tank 101, thereby remotely controlling the paint immersion operation.

[0059] like Figure 2 As shown, the main air valve 301a is the 1# valve, the outlet valve 1 301b is the 3# valve, the outlet valve 2 301c is the 2# valve, the inlet valve 301d is the 4# valve, the valve 1 301e-1 is the 5# valve, the valve 2 301e-2 is the 6# valve, and the paint return valve 301f is the 7# valve.

[0060] The PLC controller 302 is combined with the display screen 202, and the valve group 301 is displayed on the display screen 202. The valve group 301 can be remotely controlled and the workpiece status can be monitored through the display screen 202, thereby improving the paint immersion efficiency of the workpiece.

[0061] The remaining structure is the same as that of Example 2.

[0062] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0063] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A vacuum pressure impregnation method, characterized in that: include, By installing a monitoring device at the observation port of the paint dipping tank (101); By placing the workpiece into a paint dipping tank (101); By applying a coating to the workpiece; and, By removing the workpiece after the dip coating is completed.

2. The vacuum pressure impregnation method according to claim 1, characterized in that: The monitoring device comprises a camera (201) and a display screen (202) of a remote viewing device, and the interior of the paint dipping tank (101) can be remotely observed through the camera (201) and the display screen (202).

3. The vacuum pressure impregnation method according to claim 2, characterized in that: The varnishing operation includes vacuuming the varnishing tank (101), varnishing the workpiece, and a varnishing process.

4. The vacuum pressure impregnation method according to claim 3, characterized in that: The workpiece is dipped in paint including vacuum dipped in paint and normal pressure dipped in paint. The workpiece is first dipped in paint in vacuum and then dipped in paint at normal pressure.

5. The vacuum pressure impregnation according to claim 3 or 4, characterized in that: After the workpiece is dipped in paint, it is repainted, then the workpiece is drained and the fallen paint is repainted again.

6. A vacuum pressure impregnation device for performing a vacuum pressure impregnation method according to claims 1 to 5, characterized in that: include; The dipping assembly (100) comprises a paint dipping tank (101) and a paint storage tank (102), and a connecting pipe (103) connected to the paint dipping tank (101) and the paint storage tank (102). A monitoring component (200), comprising a camera (201) disposed outside the paint storage tank (102), and a display screen (202) electrically connected to the camera (201); and, A control assembly (300) comprises a valve group (301) installed in the connecting pipe (103).

7. The vacuum pressure impregnation device according to claim 6, characterized in that: The connecting pipe (103) includes an air inlet pipe (103a) and an air outlet pipe (103b) arranged on the paint dipping tank (101), an air outlet pipe (103c) arranged on the paint storage tank (102), a paint outlet pipe (103d) and a paint return pipe (103e) arranged between the paint storage tank (102) and the paint dipping tank (101), and a main air pipe (103f) connected to the air outlet pipe (103b) and the air outlet pipe (103c).

8. The vacuum pressure impregnation device according to claim 7, characterized in that: The end of the main air pipe (103f) is connected to a vacuum pump (103f-1), and a pressure gauge (103f-2) is arranged on the main air pipe (103f); The paint return pipe (103e) and one end of the paint outlet pipe (103d) are merged and connected to the bottom of the paint dipping tank (101); the other end of the paint return pipe (103e) is located at the top of the paint storage tank (102); and the other end of the paint outlet pipe (103d) is located at the bottom of the paint storage tank (102).

9. The vacuum pressure impregnation device according to claim 8, characterized in that: The valve group (301) includes a main air valve (301a) arranged on the main air pipe (103f), an air outlet valve (301b) arranged on the air outlet pipe (103b), an air outlet valve (301c) arranged on the air outlet pipe (103c), an air intake valve (301d) arranged on the air intake pipe (103a), a paint outlet valve (301e) arranged on the paint outlet pipe (103d), and a paint return valve (301f) arranged on the paint return pipe (103e).

10. The vacuum pressure impregnation device according to claim 9, characterized in that: The paint outlet pipe (103d) is provided with a filter tank (103d-1), and the paint outlet valve (301e) comprises a valve 1 (301e-1) arranged between the filter tank (103d-1) and the paint storage tank (102), and a valve 2 (301e-2) arranged between the filter tank (103d-1) and the paint dipping tank (101); The control component (300) further comprises a PLC controller (302), and the valve group (301) is connected to the PLC controller (302).

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